001/* 002 * (C) Copyright 2006-2013 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 */ 018 019package org.nuxeo.template.deckjs; 020 021import java.io.File; 022import java.io.IOException; 023import java.io.InputStream; 024import java.net.URL; 025import java.util.Enumeration; 026 027import org.apache.commons.logging.Log; 028import org.apache.commons.logging.LogFactory; 029import org.nuxeo.common.Environment; 030import org.nuxeo.common.utils.FileUtils; 031import org.nuxeo.common.utils.Path; 032import org.nuxeo.ecm.core.api.NuxeoException; 033import org.osgi.framework.BundleActivator; 034import org.osgi.framework.BundleContext; 035 036/** 037 * The activator expand the sample documents in the data directory. 038 * 039 * @author <a href="mailto:tdelprat@nuxeo.com">Tiry</a> 040 * @author <a href="mailto:ldoguin@nuxeo.com">Laurent Doguin</a> 041 */ 042public class TemplateBundleActivator implements BundleActivator { 043 044 protected static TemplateBundleActivator instance; 045 046 private BundleContext context; 047 048 protected static final Log log = LogFactory.getLog(TemplateBundleActivator.class); 049 050 private static File tmpDir; 051 052 private static String dataDirPath; 053 054 protected static String getTemplateResourcesRootPath() { 055 return "templatesamples"; 056 } 057 058 public URL getResource(String path) { 059 return this.context.getBundle().getResource(path); 060 } 061 062 public Enumeration<?> findEntries(String path) { 063 return this.context.getBundle().findEntries(path, null, true); 064 } 065 066 public BundleContext getContext() { 067 return context; 068 } 069 070 @Override 071 public void start(BundleContext context) { 072 instance = this; 073 this.context = context; 074 initDataDirPath(); 075 expandResources(); 076 } 077 078 @Override 079 public void stop(BundleContext context) { 080 this.context = null; 081 cleanupDataDirPath(); 082 } 083 084 /* Note that this may be called twice, because several activators inherit from this class. */ 085 protected static void initDataDirPath() { 086 if (dataDirPath != null) { 087 return; 088 } 089 String dataDir = Environment.getDefault().getData().getPath(); 090 Path path = new Path(dataDir); 091 path = path.append("resources"); 092 dataDirPath = path.toString(); 093 } 094 095 @SuppressWarnings("deprecation") 096 protected static void cleanupDataDirPath() { 097 if (tmpDir != null) { 098 FileUtils.deleteTree(tmpDir); 099 tmpDir = null; 100 } 101 dataDirPath = null; 102 } 103 104 protected static Path getDataDirPath() { 105 return new Path(dataDirPath); 106 } 107 108 public void expandResources() { 109 log.info("Deploying templates for bundle " + context.getBundle().getSymbolicName()); 110 111 URL sampleRootURL = getResource(getTemplateResourcesRootPath()); 112 if (sampleRootURL == null) { 113 return; 114 } 115 116 Path path = getDataDirPath(); 117 path = path.append(getTemplateResourcesRootPath()); 118 File dataDir = new File(path.toString()); 119 if (!dataDir.exists()) { 120 dataDir.mkdirs(); 121 } 122 123 Enumeration<?> urls = findEntries(getTemplateResourcesRootPath()); 124 while (urls.hasMoreElements()) { 125 URL resourceURL = (URL) urls.nextElement(); 126 try { 127 InputStream is = resourceURL.openStream(); 128 String filePath = resourceURL.getFile(); 129 filePath = filePath.split("/" + getTemplateResourcesRootPath() + "/")[1]; 130 filePath = "/" + filePath; 131 File f = new File(dataDir, filePath); 132 File parent = f.getParentFile(); 133 if (!parent.exists()) { 134 parent.mkdirs(); 135 } 136 FileUtils.copyToFile(is, f); 137 is.close(); 138 } catch (IOException e) { 139 throw new NuxeoException("Failed for template: " + resourceURL, e); 140 } 141 } 142 } 143 144 public static InputStream getResourceAsStream(String path) throws IOException { 145 URL url = instance.getResource(path); 146 return url != null ? url.openStream() : null; 147 } 148 149}